By 76 I think compression was something like 7.5/1, you can run 9.5/1 and get a good bump in horsepower and torque across the board, no real downside, you will need to run premium if you arent already. That and a mild cam will really wake the car up, maybe not rocket ship, but will feel a lot peppier. If the rest of the head is good wont cost much more than a fancy exhaust.